Levin insists that American tax dodgers have cost the U.S. Treasury as much as $100 million annually in lost revenue. And yet, all that probing has only produced the names of 238 tax cheats out of 22,000, Levin admitted.

The Senate report faulted the U.S. Department of Justice for not being more aggressive in going after banks suspected of helping the rich offshore their money.

“I’m sure similar types of James Bond environments exist in other banks,” Levin said, referring to the “cloak and dagger” methods employed by Credit Suisse to help its American customers. For example, clients were brought to meetings in a remote-controlled elevator without buttons. One client told the subcommittee that a Credit Suisse employee delivered the customer’s bank statements hidden in a copy of Sports Illustrated magazine. The bank also opened a branch at Zurich airport to make it easy for U.S. clients to open and use accounts.